{application,emqx_backend_mysql,
 [{description,"EMQ X MySQL Backend"},
  {vsn,"4.1.1"},
  {modules,[
   emqx_backend_mysql,
   emqx_backend_mysql_actions,
   emqx_backend_mysql_app,
   emqx_backend_mysql_batcher,
   emqx_backend_mysql_cli,
   emqx_backend_mysql_sup]},
  {registered,[emqx_backend_mysql_sup]},
  {applications,[kernel,stdlib,mysql,ecpool]},
  {mod,{emqx_backend_mysql_app,[]}}]}.